#include <stdio.h>

int main() {
    int n = 0;
    while (scanf_s("%d", &n) == 1) {
        for (int i = 0; i < n; i++)
        {
            for (int j = 0; j < n; j++)
            {
                if ((i == j) || (i + j == (n - 1)))
                {
                    printf("*");
                }
                else {
                    printf(" ");
                }
            }
            printf("\n");
        }
    }
    return 0;
}